/**
* @covers ::addAttachedEntity()
* @covers ::getAttachableEntityManager()
*/
public function testAddAttachedEntityCallsManager()
{
$entity = $this->getMockBuilder(IdentifiableEntityInterface::class)->getMock();
$key = 'someKey';
$attachableEntityManager = $this->injectManager($this->attachableEntityTrait);
$attachableEntityManager->expects($this->once())->method('addAttachedEntity')->with($this->identicalTo($entity), $this->equalTo($key));
$this->assertSame($this->attachableEntityTrait, $this->attachableEntityTrait->addAttachedEntity($entity, $key));
}
